Air-filter.



, c. GUNTRUM.

PPLIGATIOI FILED PERU, 1910.

WMe/awo: I JM k. JM

vTo all 'whom ma?) concern.'

,CARL GUNTRUM, oF BnooKLYN, NEWYORK l .AIR-FILTER.

Be it known that I, CARL GUNTRUM, a

citizen yot the United States, residingaty Brooklyn, county of Kings, and State of New York, have invented new and useful Improvements in Air-Filters, of which the following is a specification.

This invention relates to an air filter of novel construction, in which an air jet is first subjected to an induced current of a cleansing liquid and is then subdivided into bubbles rising through said liquid. In this Way the air is thoroughly cleaned, so that it is Well adapted for themanufacture of food the air to be filtered from an air inlet pipe 14 controlled by needle valve 15. Head 16 of vessel 11 is provided with an inlet nozzle 17 for the introduction of the filtering solution and with an outlet pipe 18 for the purified air, While the spent solution is discharged through an outlet cock 19 of bottom 10.

Upon nozzle is yfitted a mixer vthrough y which the air jet,l together with an induced stream of the filtering solution, is caused to flow before the air is discharged into the main body of such solution.

The mixer is shown to consist of a central upright pipe 20 supported by a foot 21 of nozzle 13 and of a diameter to form a liquid passage around said nozzle, the liquid from vessel 11 being admitted into said passage through inlet orifices 22. The upper end of pipe 20 carriesa socket 23 from which radiate the upper curved ends of a cluster of branch pipes or downwardly extending sections 24 arranged around pipe 20. Pipes 24 are shorter than pipe 20, and their lower ends carry a joint annular outlet ipe 25, Within which pipe 20 is centered. nular pipe 25 is perforated vor screened, as at 26,

VSpecleation of Letters Patent.`

constructed as described, comprises an article complete in itself, which may be readilyr secured imposition by being slipped over foot 21.

1 In practice, the air admitted under presf Nnin-innsurarns PATENT '.oFFion.

Patented oct. 11,1910. Application filed February 11, 1910.. Serial No. 543,234. i i i for the joint egress of airandiliquid fromV the mixer into the`-b0dy of liquid contained 4in vessel 11. It Will be seen that the mixer sure into nozzle 13 will induce an inflow of liquid through orifices 22 into pipe 20. This mixture of air and liquid will be caused to rise through pipe 20 into socket 23, where the stream is subdivided, and thence descends through the different flanking pipes 24., into the annulus 25. During this flow along the tortuous course described, the air will be placed' into such prolonged and intimate contact with the purifying liquid, that a thor-v ough cleansing of the airis effected, the main bulk of the impurities carried by the air being taken up by the liquid. From pipe 25, the air and liquid are discharged into vessel 11, near the bottom thereof. VAs the air passes throughscreen 26, it will be finely comminuted, rising in the form of small bubbles through the main body of the liquid in vessel 11. In this way a further effective filtration of the air takes place, so that it arrives in a thoroughly purified state within' the upper part of vessel 11, from which it may be drawn through pipe 18.

It is obvious that the peculiar form of the mixer kmay 'oe changed without. departing from the spirit of the invention, its object being to insurea tortuous passage forthe joint flow of the air and liquid, and for the discharge of the air into the liquid vessel below the liquid level thereof.

I claim:

1. An air filter comprising a liquid vessel, an inclosed air nozzle, a surrounding liquid pipe which communicates with the vessel at one end, a branch extending from the other end of said pipe into the vessel below the liquid level thereof, and an apertured outlet pipe communicating with said branch. l

2. An air filter, comprising a liquid vessel, an inclosed air nozzle, an apertured liquid pipe which communicates with said nozzle, a

p pluality of branch pipes' commnicating and a sc1eened-annular outlet pipe communi- Wlth the hqmd plpe, and a screened outlet catmg wlth the lower ends of the branch 10 p1pe commumcatmg Wlth the branch plpes. plpes.-v f

Y y -v 3. An .zur lter, compl-15mg a hquld vesv k CARL GUNTRUM l n 5 sel, a-n lnclosed zur nozzle, au apertured f hquld plp; Whlch commumcates Wlth sind Wltnesses: Q

nozzle, a plurahty of branch plpes commum- FRANK V. BRIESEX,

eating with the upper end of the lquid' pipe, EDWARD SCHORR. 

